Attachment for wrenches.



0.. YUNCKER.

ATTACHMENT FOR WRENCHES.

APPLICATION FILED JULYII. 1918.

1,294,857. Patented Feb. 18, 1919. V

wvemboz C. Yuma/9611 aw J WOT/140114} nnrrnn stares ATENT orationCLARENCE r. YUNCKER, or DODGE CITY, KANSAS.

ATTACHMENT son W'RENCHES.

To all Mm, it may concern:

Be it known that I, (.LARENUE F. YUNCKER, a citizen oi the l'nitedStates, residing at Dodge (ity, in the county of Ford and State of'liansas. have invented certain new and useful ImprovementsinAttachments tor lVrenches, of which the following" is a specification.

This invention relates to improvements in attaclnuents torwrenches toenable a bolt to be. held from turning while the nut is being removed orattached, and has for one of its objects to improve the construction andincrease the etticiency and utility of dcvices of this character.

Another object of the invention is to provide a device of this characterwhich may be readily applied without material structural change towrenches of various forms more particularly to socket wrenches.

ir'ith these and other objects in view, the invention consists incertain novel teatures of construction. as hereinafter shown anddescribed and then specifically pointed out in the claims: and in thedrawings illustrative of the preferred embodiment of the inventionfigure l a side elevation of the improved device,

Fig. 2 is a section on the line 2- 2 of Fig. 1,

Fis 3 is an enlarged detached view of the slidalile clamp device.

The device is designed to enable he applied to or removed trout ho tohold the l=olt trom rotaticm .duri removal o" application of the not.

"The improved wrench is designe pariicuiarl to hold bolts where the headof t bolt or the located in an inacces pC-SiilOtt to an m'ilinuryholding impuent. for in many portions of an nohiies like. and tor thepurpose ot illustra' attachment is shown applied to a tional socketv-iiench in which it) regitseuts the stock. 11 the turn handle. 12 thebreast head and 13 the not or bolt head engaging socket. The ir orovedattachment comprises a substantially iii-shaped clamp device 1- adaptedto be adjustably engaged with the stock-10 and spaceu a convenientdistance t'rom the socket 13. Pl. spring 15 surrounds the stock betweenthe socket 13 and the clamp 14-. The clamp et-ztend at one. side anddiridet to receive nuts to app 1y Specification of Letters Patent.Patented IFQl). 18, 1919 Application filed Ju1y17, 1918. Serial No.245,373.

a pivot bolt 16 from which an arm 17 is swingingly suspended. Near itsfree end the arm 17 is bent laterally as shown at 18 and terminates in anut or bolt head receiving socket 19 corresponding to and coacting withthe socket 13. The spring 15 operates to maintain the confronting edgesof the sockets 13-19 in close Contact, or to move the socket 19 towardthe SOCl'TQt 13. \Vhen the improved device is to be used the clamp 14 ismanually forced away from the socket 13 against the resistance of thespring 15 and the socket 13 disposed over the nut to be removed and thesocket J) disposed over the head of the bolt from which the nut is to beremoved. The socket 19 thus holds the head of the bolt from r0tationwhile rotary movement is applied to the stock 10by means of the crankhandle 11. The bolt is thusheld from rotary movement while the nut isbeing detached and by the same implement, and by one opera-- tion.

The improved implement is imple in con struetion. can be inexpensivelymanufactured and adapted without material strum tural change to socketwrenches of various terms and sizes. By turning the arm 17- upon itspivot 16 into the position shown oed the invention, wl rtiltlVl onTitled bear 2 s-z'ieket 3 hem; with socke portion of the wrench and aclamp ing screw engaging the threaded end of the pin and bearing againstthe adjacent arm of the clamp. I

2. The combination with a brace including 1 shank having a socket, of asubstantially brace and the clamp and m LE2:

U-shaped clamp slidably mounted on the shank of the brace, an armpivotally mounted for lateral movement between the arms of the clamp andprovided with a socket normally extending beneath the socket of theshank, a spring encircling the shank of the brace and bearing againstthe socket of said operating to maintain said sockets normally inalinement with each other, and means for compressing the arms of theclamp to hold the socket engaging arm in inoperative position.

3. The combination with a tool including Gog-lies of this patent may bea socket, of an arm pivotally mounted for longitudinal and lateralmovement with respect to the tool and provided with a socket adapted toregister with the socket of the tool, and a spring carried by the tooland bearing against the arm for normally drawing the sockets toward eachother, said socket carrying arm being 1nov ble laterally to inoperativeposition at one side of the tool In testimony whereof I afiix mysignature.

cnasnncn F. YUNCKER. [as] obtained for five cents each, by addressingthe Commissioner of fatents.

woahin taa, '8.

